package object;

public class Test_3<T> {
    public static void main(String[] args) {
//        Test_3<? extends Number> t1 = new Test_3<Integer>();
//        t1 = new Test_3<Double>();
//        //t1 = new Test_3<String>();

//        Test_3<?> t1 = new Test_3<>();
//        t1 = new Test_3<String>();

//        Test_3<? super Integer> t3 = new Test_3<>();
//        t3 = new Test_3<Number>();


    }
}
